dawidsz-allegro commented on issue #48816:
URL: https://github.com/apache/airflow/issues/48816#issuecomment-3345748272
Hi, I stumped on the same issue. Only solution I found is addition of a
python task with trigger_rule="all_done" which checks for failed tasks and
succeeds if none were found e.g.:
`
@task(trigger_rule="all_done", retries=0)
def validate_mapped_tasks_completion(mapped_task_id: str, **context) -> None:
dag_run = context["dag_run"]
failed_tasks = []
for ti in dag_run.get_task_instances():
if ti.task_id == mapped_task_id and ti.state == "failed":
failed_tasks.append(f"Task
{ti.task_id}_index_{ti.map_index}_try_number_{ti._try_number} failed.")
if failed_tasks:
raise AirflowFailException("\n".join(failed_tasks))
`
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